ITBO960680A1

ITBO960680A1 - GUIDE FOR SLIDING WINDOWS

Info

Publication number: ITBO960680A1
Application number: IT96BO000680A
Authority: IT
Inventors: Luigi Pistoia
Original assignee: Tender Srl
Priority date: 1996-12-20
Filing date: 1996-12-20
Publication date: 1998-06-20
Also published as: IT1287610B1; ITBO960680A0

Description

DESCRIZIONE DESCRIPTION

annessa a domanda di brevetto per INVENZIONE INDUSTRIALE dal titolo: GIUDA PER SERRAMENTI SCORREVOLI. attached to a patent application for INDUSTRIAL INVENTION entitled: GIUDA FOR SLIDING FRAMES.

H presente trovato si riferisce ai mezzi di guida e di isolamento termo-acustico che equipaggiano serramenti scorrevoli. The present invention relates to the guide and thermo-acoustic insulation means which equip sliding doors and windows.

Nella fabbricazione di porte e finestre scorrevoli, in particolare per edifici, ? noto realizzare guide di scorrimento delle ante apribili del serramento corredate di guarnizioni di isolamento termico ed acustico operanti a contatto strisciante. In the manufacture of sliding doors and windows, especially for buildings,? It is known to produce sliding guides for the opening doors of the window or door equipped with thermal and acoustic insulation gaskets operating in sliding contact.

Tali guarnizioni sono normalmente disposte tra superfici di scorrimento laterali della guida e contrapposte superfici della struttura del serramento ed operano in modo da intercettare il vano interposto ad esse impedendo al flusso d?aria di raggiungere Tintemo dell?edificio. These gaskets are normally arranged between lateral sliding surfaces of the guide and opposite surfaces of the frame structure and operate in such a way as to intercept the space interposed to them, preventing the flow of air from reaching the building's color.

In un primo modo noto di realizzazione, tali guarnizioni sono costituite da spazzole portate dall?anta scorrevole in proiezione verso la guida e strutturate in modo da mantenersi costantemente a contatto con questa senza tuttavia opporre apprezzabile resistenza allo scorrimento in fase di apertura e di chiusura del serramento. In a first known embodiment, these gaskets are constituted by brushes carried by the sliding door in projection towards the guide and structured in such a way as to remain in constant contact with this without however opposing appreciable resistance to sliding during the opening and closing of the guide. window frame.

In un modo di realizzazione alternativo al precedente, l?isolamento termoacustico viene ottenuto mediante guarnizioni tubolari in gomma, a sezione quadrata o romboidale e di forma allungata, le quali sono portate dall?anta apribile in proiezione orizzontale verso e a contatto con le superfici laterali della guida. In an alternative embodiment to the previous one, the thermo-acoustic insulation is obtained by means of tubular rubber gaskets, with a square or rhomboidal section and of an elongated shape, which are carried by the opening door in horizontal projection towards and in contact with the lateral surfaces of the guide.

Dette guarnizioni sono sostenute con orientamento tale da originare contatto, con la superficie laterale delle guide, lungo il proprio spigolo affacciato, su superfici sostanzialmente lineari, o comunque di ampiezza estremamente ridotta, che si sviluppano parallelamente alla direzione di scorrimento dell?anta. Said gaskets are supported with an orientation such as to originate contact, with the lateral surface of the guides, along their own facing edge, on substantially linear surfaces, or in any case of extremely reduced width, which develop parallel to the sliding direction of the door.

Le soluzioni che prevedono guarnizioni a spazzole hanno il vantaggio di una notevole semplicit? costruttiva ed offrono una modesta resistenza allo scorrimento dell?anta, tuttavia presentano lo svantaggio di una tenuta termoacustica di efficacia relativamente bassa. Sotto l?azione del vento, sia in spinta sia in depressione, la guarnizione ? infatti libera di inflettersi verso l?interno o l?esterno del serramento e di distaccarsi almeno parzialmente dalle superfici laterali della guida riducendo in modo sensibile l?efficacia della tenuta. The solutions that foresee brush seals have the advantage of a remarkable simplicity? construction and offer a modest resistance to the sliding of the door, however they have the disadvantage of a relatively low-effective thermo-acoustic seal. Under the action of the wind, both in thrust and in depression, the gasket? in fact, it is free to bend towards the inside or the outside of the window frame and to detach itself at least partially from the lateral surfaces of the guide, significantly reducing the effectiveness of the seal.

Le guarnizioni tubolari in gomma offrono invece una tenuta pi? efficace, tuttavia presentano lo svantaggio di una notevole complessit? strutturale e comunque maggior resistenza allo scorrimento, rispetto alle guarnizioni a spazzola. The tubular rubber gaskets, on the other hand, offer a better seal. effective, however, have the disadvantage of a considerable complexity? structural and in any case greater resistance to sliding, compared to brush seals.

Lo scopo del presente trovato ? pertanto quello di fornire una guida che sia in grado di interagire con le guarnizioni in modo da contrastare meccanicamente l?azione del vento esplicando una tenuta termoacustica pi? elevata ed offrendo contemporaneamente una reazione allo scorrimento dell?anta del serramento di modesta intensit?. The purpose of the present invention? therefore that of providing a guide that is able to interact with the gaskets in order to mechanically counteract the action of the wind, exerting a more thermo-acoustic seal. high and at the same time offering a reaction to the sliding of the window sash of modest intensity.

In accordo con l?invenzione tale scopo ? raggiunto mediante una guida conformata in modo che almeno una delle superfici di scorrimento del serramento presenti almeno una parete rigida che si proietta verso la guarnizione e che contrasta il cedimento elastico di quest?ultima almeno verso l?interno del serramento e lungo la direzione di spinta del vento. In accordance with the invention this purpose? reached by means of a guide shaped so that at least one of the sliding surfaces of the window or door has at least one rigid wall that projects towards the gasket and which contrasts the elastic yielding of the latter at least towards the inside of the window and along the thrust direction of the wind.

Una guida realizzata in accordo con l?invenzione ha il fondamentale vantaggio di interagire con la guarnizione in modo da sviluppare una azione di contrasto della guarnizione medesima che ? tanto pi? elevata quanto pi? ? alta la spinta del vento. A guide made in accordance with the invention has the fundamental advantage of interacting with the gasket so as to develop a contrasting action of the gasket itself which? much more? high how much more? ? high the wind thrust.

Tale caratteristica, nel caso particolare di guarnizioni a spazzola consente di trattenere i peli della spazzola in una condizione di massimo compattamento reciproco che aumenta sensibilmente l?efficacia della tenuta, senza generare, nel medesimo tempo, alcun apprezzabile incremento della resistenza allo scorrimento dell?anta. This characteristic, in the particular case of brush seals, allows the brush hairs to be retained in a condition of maximum mutual compaction which significantly increases the effectiveness of the seal, without generating, at the same time, any appreciable increase in the sliding resistance of the door. .

La guida secondo il trovato permette, con la medesima conformazione strutturale delle pareti e delle parti di serramento contrapposte a queste, la possibilit? di adottare guarnizioni tubolari in gomma di minima resistenza allo scorrimento in alternativa alle guarnizioni a spazzola. Pi? in particolare, adottando guarnizioni ad aletta, doppia aletta o toroidali in materiale elastomero provvisto di uno strato di tessuto che si associa a contatto con la guida (cosiddette guarnizioni fioccate) ? possibile combinare l?efficacia della tenuta propria della gomma con una resistenza allo scorrimento del serramento assai ridotta. The guide according to the invention allows, with the same structural conformation of the walls and of the parts of the window frame opposed to them, the possibility? to use tubular rubber seals with minimal sliding resistance as an alternative to brush seals. Pi? in particular, by adopting fin, double fin or toroidal seals in elastomer material provided with a layer of fabric that is associated in contact with the guide (so-called flocked seals)? It is possible to combine the effectiveness of the rubber seal with a very low resistance to sliding of the window.

Le caratteristiche tecniche del trovato, secondo i suddetti scopi, sono chiaramente riscontrabili dal contenuto delle rivendicazioni sottoriportate ed i vantaggi dello stesso risulteranno maggiormente evidenti nella descrizione dettagliata che segue, fatta con riferimento ai disegni allegati, che ne rappresentano una forma di realizzazione puramente esemplificativa e non limitativa, in cui: The technical characteristics of the invention, according to the aforementioned purposes, are clearly verifiable from the content of the claims reported below and the advantages thereof will become more evident in the detailed description that follows, made with reference to the attached drawings, which represent a purely exemplary embodiment and non-limiting, in which:

- la figura 1 ? una vista di insieme, in sezione trasversale di un serramento scorrevole il quale ? mobile lungo guide realizzate in accordo con il trovato; - la figura 2 ? un vista in sezione ed in scala di ingrandimento di un particolare della Figura 1, la quale vista illustra una realizzazione costruttiva del trovato che prevede l?adozione di una guarnizione a spazzola; - figure 1? an overall view, in cross section of a sliding window which? movable along guides made in accordance with the invention; - figure 2? a sectional view on an enlarged scale of a detail of Figure 1, which view illustrates a constructive embodiment of the invention which provides for the adoption of a brush seal;

- la figura 3 ? una vista in sezione ed in scala di ingrandimento di una realizzazione costruttiva che prevede l?adozione di una guarnizione diversa da quella di figura 2; - figure 3? a sectional view and on an enlarged scale of a constructional embodiment which provides for the adoption of a gasket different from that of figure 2;

- la figura 4 ? una vista in scala di ingrandimento di una efficace realizzazione alternativa rispetto a quella di Figura 3. - figure 4? an enlarged scale view of an effective alternative embodiment with respect to that of Figure 3.

Conformemente alle figure dei disegni allegati, con 1 ? globalmente indicata una guida per serramenti 2 scorrevoli rappresentati in particolare da porte o finestre in telaio metallico per edifici. In accordance with the figures of the attached drawings, with 1? generally indicated is a guide for sliding door and window frames 2 represented in particular by metal frame doors or windows for buildings.

La guida 1 comprende un elemento allungato 20 a forma tubolare, fisso, il quale ? destinato a sostenere in appoggio le ante 2a,2b del serramento 2 permettendone lo scorrimento relativo longitudinale per l?apertura e la chiusura. The guide 1 comprises an elongated, fixed, tubular-shaped element 20 which? designed to support the leaves 2a, 2b of the window frame 2 in support, allowing them to slide longitudinally for opening and closing.

Pi? in particolare, l?elemento allungato 20 comprende una superficie di appoggio 3c centrale per rulli 21 a profilo cuspidale e superfici di scorrimento 3a,3b disposte ai due lati della superficie centrale 3c. Pi? in particular, the elongated element 20 comprises a central bearing surface 3c for cusp-shaped rollers 21 and sliding surfaces 3a, 3b arranged on the two sides of the central surface 3c.

Le superfici di scorrimento 3a,3b laterali (Figura 1) hanno profilo concavo il quale ? definito da un fondo 6 e da due pareti 5a,5b bilaterali e divergenti da detto fondo 6 (Figure 2 e 3). The lateral sliding surfaces 3a, 3b (Figure 1) have a concave profile which? defined by a bottom 6 and by two bilateral walls 5a, 5b diverging from said bottom 6 (Figures 2 and 3).

Le ante 2a,2b del serramento 2 presentano bordi 2c di estremit? profilati, contrapposti alle superfici di scorrimento 3a,3b laterali dell?elemento allungato 20, nonch? distanziati da dette superfici di scorrimento 3a,3b. The leaves 2a, 2b of the window 2 have end edges 2c? profiled elements, opposed to the lateral sliding surfaces 3a, 3b of the elongated element 20, as well as spaced from said sliding surfaces 3a, 3b.

Tra i bordi 2c, la guida 1 comprende altres? guarnizioni 4 di tenuta portate dal serramento 2 in proiezione orizzontale verso le superfici di scorrimento 3a,3b laterali dell? elemento allungato 20. Between the edges 2c, the guide 1 also includes? sealing gaskets 4 carried by the window frame 2 in horizontal projection towards the lateral sliding surfaces 3a, 3b of the elongated element 20.

In una prima forma di realizzazione mostrata in Figura 2, le guarnizioni 4 sopraddette sono realizzate a spazzola e sono premute contro il profilo concavo 5a,6,5b dell?elemento allungato 20. In conseguenza di tale associazione risultano compattate tra loro lungo una direzione Y secondo la quale sostanzialmente si esercita l?azione del vento. In a first embodiment shown in Figure 2, the aforementioned gaskets 4 are made like a brush and are pressed against the concave profile 5a, 6.5b of the elongated element 20. As a consequence of this association they are compacted together along a direction Y according to which the action of the wind is essentially exercised.

Dalla osservazione della figura 2 si rileva pi? in particolare che le pareti 5a,5b del profilo concavo si proiettano verso la guarnizione 4 in modo da contrastare il cedimento elastico della estremit? libera 41 della guarnizione 4 medesima la quale viene inflessa dall?azione del vento. From the observation of figure 2 it is possible to detect more? in particular that the walls 5a, 5b of the concave profile project towards the gasket 4 so as to counteract the elastic yielding of the extremity? free 41 of the gasket 4 itself which is inflected by the action of the wind.

Nel caso di conformazione simmetrica del profilo concavo 5a,6,5b rispetto alla guarnizione 4, il cedimento elastico suddetto viene contrastato in entrambi i sensi della direzione Y di azione del vento. Le pareti 5a,5b dell?elemento allungato 20 interagiscono pertanto con la guarnizione 4 in modo da opporsi sia all?azione di spinta sia alla depressione del vento. In caso contrario, tale azione non adeguatamente ostacolata tenderebbe a condurre la guarnizione 4 in uno stato di distacco dalle superfici di scorrimento 3a,3b, che seppure per la breve durata di una raffica, riduce in modo piuttosto considerevole l?efficacia dell?isolamento termoacustico del serramento 2. In the case of a symmetrical conformation of the concave profile 5a, 6.5b with respect to the gasket 4, the aforementioned elastic yielding is opposed in both directions of the wind action direction Y. The walls 5a, 5b of the elongated element 20 therefore interact with the gasket 4 so as to oppose both the thrust action and the depression of the wind. Otherwise, this action, not adequately hindered, would tend to lead the gasket 4 into a state of detachment from the sliding surfaces 3a, 3b, which, even for the short duration of a burst, considerably reduces the effectiveness of the thermo-acoustic insulation. of the window 2.

Preferibilmente, il profilo concavo 5a,6,5b ? curvilineo, tuttavia si comprende che l?effetto tecnico sopra descritto pu? essere ottenuto in modo del tutto identico anche mediante un profilo concavo 5a,6,5b conformato a cuspide. Preferably, the concave profile 5a, 6,5b? curvilinear, however it is understood that the technical effect described above can? be obtained in a completely identical way also by means of a concave profile 5a, 6,5b shaped like a cusp.

Nell?esempio di realizzazione mostrato nelle Figure 3 e 4, la guarnizione 4 ha forma tubolare e ad aletta (o doppia aletta) rispettivamente, ? realizzata in materiale elastomerico e, preferibilmente, ? provvista di uno strato di tessuto 7 illustrato in Figura 4. In the exemplary embodiment shown in Figures 3 and 4, the gasket 4 has a tubular shape and a fin (or double fin) shape respectively. made of elastomeric material and, preferably,? provided with a layer of fabric 7 illustrated in Figure 4.

La guarnizione 4 ? altres? corredata di un elemento peduncolare 25 che consente l?ancoraggio di essa guarnizione 4 ai bordi 2c dell?anta 2a;2b. In modo del tutto analogo ci? ? previsto anche per l?ancoraggio della guarnizione 4 a spazzola di Figura 2. The gasket 4? also? equipped with a pedicle element 25 which allows the seal 4 to be anchored to the edges 2c of the door 2a; 2b. In a completely analogous way there? ? also provided for anchoring the brush seal 4 of Figure 2.

In definitiva, una medesima conformazione dell?elemento allungato 20 e dei bordi 2c delle ante 2a^b consente indifferentemente l?impiego di guarnizioni 4 del tipo a spazzola strisciante o del tipo con strato di tessuto 7 associato a diretto contatto con le pareti rigide 5a,5b delle superfici 3a,3b di scorrimento (guarnizioni di tipo fioccato) . Ultimately, the same conformation of the elongated element 20 and of the edges 2c of the doors 2a ^ b indifferently allows the use of seals 4 of the sliding brush type or of the type with a layer of fabric 7 associated in direct contact with the rigid walls 5a , 5b of the sliding surfaces 3a, 3b (flaked type gaskets).

Dalla osservazione delle Figure 2 e 3 si rileva inoltre che nel caso in cui la guida 1 secondo il trovato sia corredata di ima cuffia 8 di ricoprimento delle superfici di scorrimento 3a, 3b e di sostegno 3c dell?elemento allungato 20, conformando la cuffia 8 medesima con un risalto 8a di forma complementare alle pareti rigide 5a,5b del profilo concavo 5a,6,5b ? possibile associare e trattenere in posizione la cuffia 8 sull?elemento allungato 20 della guida 1 mediante un semplice serraggio elastico a scatto del risalto 8a con il profilo concavo 5a,6,5b. From the observation of Figures 2 and 3 it can also be seen that in the case in which the guide 1 according to the invention is equipped with a cap 8 for covering the sliding surfaces 3a, 3b and support 3c of the elongated element 20, shaping the cap 8 same with a projection 8a of complementary shape to the rigid walls 5a, 5b of the concave profile 5a, 6,5b? It is possible to associate and hold in position the cap 8 on the elongated element 20 of the guide 1 by means of a simple elastic snap-lock of the projection 8a with the concave profile 5a, 6,5b.

Si rileva altres? che la cuffia 8 potrebbe prevedere due risalti 8a opposti, ma ? necessario solo uno di questi, dalla parte esterna del serramento (ad esempio verso destra nelle figure 2 e 3). Anche in questi casi, comunque, lo scorrimento agevole ? sempre presente e la parte sinistra delle guide ? destinata all?aggancio di profilati non metallici 5c, per realizzare serramenti con taglio termico. It is also noted? that the cap 8 could have two opposite projections 8a, but? only one of these is required, from the outside of the window (for example to the right in figures 2 and 3). Even in these cases, however, is the sliding smoothly? always present and the left side of the guides? intended for hooking non-metallic profiles 5c, to create doors and windows with thermal break.

H trovato cos? concepito ? suscettibile di numerose modifiche e varianti, tutte rientranti nell'ambito del concetto inventivo. Inoltre, tutti i dettagli possono essere sostituiti da elementi tecnicamente equivalenti. Did you find so? conceived? susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept. Furthermore, all the details can be replaced by technically equivalent elements.

Claims

CLAIMS Guide for sliding frames (2) comprising sliding surfaces (3a, 3b) of the fixed frame (2) and sealing gaskets (4) arranged between the sliding surfaces (3a, 3b) and the frame (2), characterized by the fact that at least one of said sliding surfaces (3a; 3b) has a profile provided with at least one rigid wall (5a; 5b) which projects towards and is associated with the gasket (4) so as to counteract the elastic yielding of said gasket ( 4) along a wind thrust direction (Y) and at least towards the inside of the window frame (2).

2. Guide, according to claim 1, characterized in that said at least one sliding surface (3a; 3b) has a concave profile, which? defined by a bottom (6) and by two said rigid walls (5a, 5b) bilateral and diverging with respect to the bottom (6), the gasket (4) being pressed against the concave profile (5a, 6,5b), resulting correspondingly contrasted from the walls (5a, 5b) in the two directions of said wind thrust direction (Y).

Guide, according to claim 2, characterized in that the profile (5a, 64? B) concave? curvilinear.

Guide, according to claim 2, characterized in that the profile (5a, 6,5b) is concave? cusp.

Guide according to claim 2, wherein the gasket (4)? shaped like a brush, characterized by the fact that said gasket (4) has its own end? free (41) associated with said at least one sliding surface (3a; 3b), so as to receive from it a contrast to its own subsidence under the action of the wind.

6. Guide, according to claim 2, characterized in that the gasket DESCRIPTION attached to a patent application for INDUSTRIAL INVENTION entitled: GIUDA FOR SLIDING FRAMES. The present invention relates to the guide and thermo-acoustic insulation means which equip sliding doors and windows. In the manufacture of sliding doors and windows, especially for buildings,? It is known to produce sliding guides for the opening doors of the window or door equipped with thermal and acoustic insulation gaskets operating in sliding contact. These gaskets are normally arranged between lateral sliding surfaces of the guide and opposite surfaces of the frame structure and operate in such a way as to intercept the space interposed to them, preventing the flow of air from reaching the building's color. In a first known embodiment, these gaskets are constituted by brushes carried by the sliding door in projection towards the guide and structured in such a way as to remain in constant contact with this without however opposing appreciable resistance to sliding during the opening and closing of the guide. window frame. In an alternative embodiment to the previous one, the thermo-acoustic insulation is obtained by means of tubular rubber gaskets, with a square or rhomboidal section and of an elongated shape, which are carried by the opening door in horizontal projection towards and in contact with the lateral surfaces of the guide. Said gaskets are supported with an orientation such as to originate contact, with the lateral surface of the guides, along their own facing edge, on substantially linear surfaces, or in any case of extremely reduced width, which develop parallel to the sliding direction of the door. The solutions that foresee brush seals have the advantage of a remarkable simplicity? construction and offer a modest resistance to the sliding of the door, however they have the disadvantage of a relatively low-effective thermo-acoustic seal. Under the action of the wind, both in thrust and in depression, the gasket? in fact, it is free to bend towards the inside or the outside of the window frame and to detach itself at least partially from the lateral surfaces of the guide, significantly reducing the effectiveness of the seal. The tubular rubber gaskets, on the other hand, offer a better seal. effective, however, have the disadvantage of a considerable complexity? structural and in any case greater resistance to sliding, compared to brush seals. The purpose of the present invention? therefore that of providing a guide that is able to interact with the gaskets in order to mechanically counteract the action of the wind, exerting a more thermo-acoustic seal. high? cT offering <^> at the same time a reaction to the sliding of the window sash of modest intensity. In accordance with the invention this purpose? reached by means of a guide shaped so that at least one of the sliding surfaces of the window or door has at least one rigid wall that projects towards the gasket and which contrasts the elastic yielding of the latter at least towards the inside of the window and along the thrust direction of the wind. A guide made in accordance with the invention has the fundamental advantage of interacting with the gasket so as to develop a contrasting action of the gasket itself which? much more? high how much more? ? high the wind thrust. This characteristic, in the particular case of brush seals, allows the brush hairs to be retained in a condition of maximum mutual compaction which significantly increases the effectiveness of the seal, without generating, at the same time, any appreciable increase in the sliding resistance of the door. . The guide according to the invention allows, with the same structural conformation of the walls and of the parts of the window frame opposed to them, the possibility? to use tubular rubber seals with minimal sliding resistance as an alternative to brush seals. Pi? in particular, by adopting fin, double fin or toroidal seals in elastomer material provided with a layer of fabric that is associated in contact with the guide (so-called flocked seals)? It is possible to combine the effectiveness of the rubber seal with a very low resistance to sliding of the window. The technical characteristics of the invention, according to the aforementioned purposes, are clearly verifiable from the content of the claims reported below and the advantages thereof will become more evident in the detailed description that follows, made with reference to the attached drawings, which represent a purely exemplary embodiment and non-limiting, in which: - figure 1? an overall view, in cross section of a sliding window which? movable along guides made in accordance with the invention; - figure 2? a sectional view on an enlarged scale of a detail of Figure 1, which view illustrates a constructive embodiment of the invention which provides for the adoption of a brush seal; - figure 3? a sectional view and on an enlarged scale of a constructional embodiment which provides for the adoption of a gasket different from that of figure 2; - figure 4? an enlarged scale view of an effective alternative embodiment with respect to that of Figure 3. In accordance with the figures of the attached drawings, with 1? generally indicated is a guide for sliding door and window frames 2 represented in particular by metal frame doors or windows for buildings. The guide 1 comprises an elongated, fixed, tubular-shaped element 20 which? designed to support the leaves 2a, 2b of the window frame 2 in support, allowing them to slide longitudinally for opening and closing. Pi? in particular, the elongated element 20 comprises a central bearing surface 3c for cusp-shaped rollers 21 and sliding surfaces 3a, 3b arranged on the two sides of the central surface 3c. The lateral sliding surfaces 3a, 3b (Figure 1) have a concave profile which? defined by a bottom 6 and by two bilateral walls 5a, 5b diverging from said bottom 6 (Figures 2 and 3). The leaves 2a, 2b of the window 2 have end edges 2c? profiled elements, opposed to the lateral sliding surfaces 3a, 3b of the elongated element 20, as well as spaced from said sliding surfaces 3a, 3b. Between the edges 2c, the guide 1 also includes? sealing gaskets 4 carried by the window frame 2 in horizontal projection towards the lateral sliding surfaces 3a, 3b of the elongated element 20. In a first embodiment shown in Figure 2, the aforementioned gaskets 4 are made like a brush and are pressed against the concave profile 5a, 6.5b of the elongated element 20. As a consequence of this association they are compacted together along a direction Y according to which the action of the wind is essentially exercised. From the observation of figure 2 it is possible to detect more? in particular that the walls 5a, 5b of the concave profile project towards the gasket 4 so as to counteract the elastic yielding of the extremity? free 41 of the gasket 4 itself which is inflected by the action of the wind. In the case of a symmetrical conformation of the concave profile 5a, 6.5b with respect to the gasket 4, the aforementioned elastic yielding is opposed in both directions of the wind action direction Y. The walls 5a, 5b of the elongated element 20 therefore interact with the gasket 4 so as to oppose both the thrust action and the depression of the wind. Otherwise, this action, not adequately hindered, would tend to lead the gasket 4 into a state of detachment from the sliding surfaces 3a, 3b, which, even for the short duration of a burst, considerably reduces the effectiveness of the thermo-acoustic insulation. of the window 2. Preferably, the concave profile 5a, 6,5b? curvilinear, however it is understood that the technical effect described above can? be obtained in a completely identical way also by means of a concave profile 5a, 6,5b shaped like a cusp. In the exemplary embodiment shown in Figures 3 and 4, the gasket 4 has a tubular shape and a fin (or double fin) shape respectively. made of elastomeric material and, preferably,? provided with a layer of fabric 7 illustrated in Figure 4. The gasket 4? also? equipped with a pedicle element 25 which allows the seal 4 to be anchored to the edges 2c of the door 2a; 2b. In a completely analogous way there? ? also provided for anchoring the brush seal 4 of Figure 2. Ultimately, the same conformation of the elongated element 20 and of the edges 2c of the doors 2a ^ b indifferently allows the use of seals 4 of the sliding brush type or of the type with a layer of fabric 7 associated in direct contact with the rigid walls 5a , 5b of the sliding surfaces 3a, 3b (flaked type gaskets). From the observation of Figures 2 and 3 it can also be seen that in the case in which the guide 1 according to the invention is equipped with a cap 8 for covering the sliding surfaces 3a, 3b and support 3c of the elongated element 20, shaping the cap 8 same with a projection 8a of complementary shape to the rigid walls 5a, 5b of the concave profile 5a, 6,5b? It is possible to associate and hold in position the cap 8 on the elongated element 20 of the guide 1 by means of a simple elastic snap-lock of the projection 8a with the concave profile 5a, 6,5b. It is also noted? that the cap 8 could have two opposite projections 8a, but? only one of these is required, from the outside of the window (for example to the right in figures 2 and 3). Even in these cases, however, is the sliding smoothly? always present and the left side of the guides? intended for hooking non-metallic profiles 5c, to create doors and windows with thermal break. Did you find so? conceived? susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept. Furthermore, all the details can be replaced by technically equivalent elements. (4)? made of elastomer material.

Guide, according to claim 5, characterized in that the gasket (4) has a tubular shape.

Guide, according to claim 5, characterized in that the gasket (4) has a shape according to at least one? flap.

Guide, according to claim 7 or 8, characterized in that the gasket (4)? provided with at least one layer of fabric (7) which is associated in contact with said at least one rigid wall (5a; 5b).

10. Guide, according to claim 1, comprising a hood (8) for covering said sliding surfaces (3a, 3b), characterized in that the hood (8)? provided with at least one projection (8a) having a shape complementary to said at least one rigid wall (5a; 5b), said hood (8) being associable with guide (1) by snap elastic clamping of the projection (8a) with said at least one wall rigid (5a; 5b).

11. Guide, according to any of the preceding claims, characterized in that a part of it? shaped in such a way as to hook non-metallic profiles (5c), suitable for producing a thermal break.

12. Gasket according to claim 5, characterized in that? extremity free (41)? conformed complementarily to the concave profile (5a, 6,5b).

13. Gasket for sliding doors and windows, characterized in that it is made of elastomer material and provided with a layer of fabric (7) which can be associated in contact with a guide (1) for sliding the door or window (2).

Guide, according to the preceding claims from 1 to 10 and according to what is described and illustrated with reference to the figures of the accompanying drawings and for the heel. Finally, the operating lever is operated to return to the extraction position, in order to drag with s? the bead flap previously hooked, making it come out of the rim channel. A tire changer of this type? described in detail in EP 1593533 in the name of the same applicant. According to the known art, the kinematic mechanism which connects the operating lever to the main body? consisting of an articulated quadrilateral, comprising a pair of opposing connecting rods, each of which has a first end? that ? articulated to the main body, and a second extremity? that ? articulated to the operating lever. Said kinematics? driven by a cylinder-piston unit, which controls a gear wheel, which? associated with one of the articulation axes of the articulated quadrilateral. While providing good results, the tire removal tool of the known art has some drawbacks. First of all, the articulated quadrilateral kinematics is constructively very complex and expensive, as it requires the construction and assembly of numerous separate components, including the two connecting rods, the articulation pins of the latter with the operating lever and with the body. main, as well as? the toothed wheels that transmit the motion between the cylinder-piston group and the articulated quadrilateral. In addition, due to the large number of moving parts, said purposes are mentioned.

15. Gasket, according to the preceding claims 12 and 13 and according to what is described and illustrated with reference to the figures of the accompanying drawings and for the aforementioned purposes.